25319265812 has 12 divisors (see below), whose sum is σ = 46235181216. Its totient is φ = 12109214040.

The previous prime is 25319265739. The next prime is 25319265821. The reversal of 25319265812 is 21856291352.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137604614 + ... + 137604797.

It is an arithmetic number, because the mean of its divisors is an integer number (3852931768).

Almost surely, 2^25319265812 is an apocalyptic number.

It is an amenable number.

25319265812 is a deficient number, since it is larger than the sum of its proper divisors (20915915404).

25319265812 is a wasteful number, since it uses less digits than its factorization.

25319265812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275209438 (or 275209436 counting only the distinct ones).

The product of its digits is 259200, while the sum is 44.

The spelling of 25319265812 in words is "twenty-five billion, three hundred nineteen million, two hundred sixty-five thousand, eight hundred twelve".